the primary coil of a transformer has n1 5 350 turns, and the secondary coil has n2 5 2 000 turns. if the input voltage across the primary coil is dv 5 170 cos vt, where dv is in volts and t is in seconds, what rms voltage is developed across the secondary coil?

Heat transfer in conduction is slow, heat transfer in convection is faster than conduction and heat transfer in radiation is the fastest.

The heat transfer takes place due to the difference in temperature. Heat transfer occurs between objects by direct contact in conduction. In this, heat transfer occurs through a heated solid object. Heat transfer takes within the fluid in convection. In this process heat transfer takes place due to difference in densities. Heat transfer occurs through electromagnetic waves and without involving particles in radiation. Heat transfer in conduction is slow, heat transfer in convection is faster than conduction and heat transfer in radiation is the fastest.

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The binding energy per nucleon = 1.368*10^-12

What is energy?

Energy, which is observable in the performance of work as well as in the form of heat and light, is the quantitative property that is transferred to a body or to a physical system in physics. It is a mechanically accepted quantity.

The mass of a proton is 1.00728 amu

The mass of a neutron is 1.00867 amu

The mass of a cobalt-60 nucleus is59.9338 amu

Step 2: Calculate binding energy

The mass defect = the difference between the mass of a nucleus and the total mass of its constituent particles.

Cobalt60 has 27 protons and 33 neutrons.

The mass of 27 protons = 27*1.00728 u = 27.19656 u

The mass of 33 neutrons = 33*1.00867 u = 33.28611 u

Total mass of protons + neutrons = 27.19656 u + 33.28611 u = 60.48267 u

Mass of a cobalt60 nucleus = 59.9338 amu

Mass defect = Δm = 0.54887 u

ΔE =c²*Δm

ΔE = (3.00 *10^8 m/s)² *(0.54887 amu))*(1.00 g/ 6.02 *10^23 amu)*(1kg/1000g)

Step 3: Calculate binding energy per nucleon

ΔE = 8.21 * 10^-11 J

8.21* 10^-11 J / 59.9338 = 1.368 *10^-12

Complete Quetion:-The mass of a proton is 1.00728 amu andthat of a neutron is 1.00867 amu. What is the binding energy pernucleon (in J) of a Co nucleus? (The mass of a cobalt-60 nucleus is59.9338 amu.) a. 3.039× 10^-12 b. 2.487 × 10^-12 c. 7.009 × 10^-14 d. 1.368 × 10^-12 e. 9.432 × 10^-13

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The distance travelled and the time it takes to travel that distance must be measured in order to determine an object's speed in motion.

Movement is the act or process of moving or changing one's location or position. ability to move with the force of a living body. gait is the term for the way a person walks. Motion can be divided into three categories depending on its type, as follows: linear movement Rotational Motion Motion in oscillations.

Things move in response to forces. They have the power to initiate motion, as well as to slow down, stop, or alter the path of an already moving item. We can say that forces produce changes in velocity because they alter an object's speed or direction. Keep in mind that acceleration is a modification of velocity.

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Answer:

false

Explanation:

your mass would be the same but you would weigh less

Solving the acceleration is S=ut +1/2at^2, S=27

v 2 = v 0 2 + 2 a ( x − x 0 ) ( constant a ).

Sn = u + a (n – ½). Hence, the formula for distance travelled in nth second is given by, Sn = u + a (n – ½).

distance = speed × time.

Where

S is displacement

u is initial velocity =0 (as the body is at rest)

a is acceleration

t is time taken

So,

S=1/2at^2

S=1/2 ×6×3 ×3

S=3×3 ×3

S=27

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The separation between fifth maximum and seventh minimum from central maximum is calculated to be 2.457mm.

The double-slit experiment shows that light and matter can exhibit the properties of classically defined waves and particles. This experiment was first performed by Thomas Young in 1802 to demonstrate the wave behavior of visible light

This experiment belongs to general class of double-path experiments, in which a wave is split into two separate waves. Changes in the path length of both the waves leads to a phase shift that creates interference patterns.

Separation between 5th and 7th minima is,

= 2 * (wavelength)x(Distance of the screen) / (slit separation)

=(2x 585x10^-9 x21x10^-2 )/ 0.1x10^-3

Hence, Separation between 5th and 7th minima is =2.457mm.

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The time constant is 0.974 sec when measured with the multimeter for the resistance of the 100 mh inductors.

The product of the circuit resistance and the circuit capacitance determines the RC time constant, often known as tau, the time constant (in seconds) of an RC circuit. It is the amount of time needed to charge a capacitor through a resistor from zero starting charge voltage to roughly 63.2% of the applied DC voltage or to discharge a capacitor to roughly 36.8% of its initial charge voltage through the same resistor.

An inductor is a passive electronic component that, when an electric current passes through its coil, momentarily stores energy in a magnetic field.

calculations:

Observed resistance = 102.6Ω

DC resistance R = 102.6Ω

                         L = 100mH

Time constant ρ = L/R

                             = 100/102.6

                             =0.974 sec.

Hence, the time constant is 0.974 sec when measured with the multimeter for the resistance of the 100 mh inductors.

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Wavelength of 594.6 nm of visible light would have a minimum at the same location.

For constructive interference

d sinQ=ml=2x436nm=892nm

For destructive interference of the other light, we have

d sinQ=(m’+1/2)l

where,  d = distance between slits

            Q = angle formed

            m = order of bright fringe

            m' = order of dark fringe

            I = wavelength

When the two angle are equal, then

892nm=(m’+1/2)l

l=1784 nm for m’=0

l=613 nm for m’=1

l=368 nm for m’=2

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The angle at which the rock was thrown is 33.37°.

An angle is formed when two rays are joined together at a common point.

To calculate the angle at which the rock was thrown, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the angle is 33.37°.

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There is posetive correlation between one's level of cognitive anxiety and somatic anxiety.

Correlation is a statistical of the  measure that is expresses  the extent to the  which two variables are the  linearly related (meaning they change together at its  constant rate). It's a common tool for describing simple relationships without making a statement about cause and effect.

An individual with higher of the  trait anxiety score tends to the   higher state anxiety score. Scores of state anxiety are rated high in the  circumstances where an individual feels the situation to be threatening irrespective of the objective danger.

It means the higher the level  of the somatic or cognitive anxiety experience by the  athletes, the lower sport to  performance. The relationship between somatic and cognitive anxiety was explained best in Multidimensional Anxiety Theory. This theory explains by  that both cognitive and somatic anxiety effect performance.

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The weight of a 31 kg object on the earth is 304.017 newtons.

Weight equals (mass of the thing) x (acceleration of gravity in that place).

— The acceleration of gravity on Earth is approximately 9.807 m/s2.

31 kilograms of mass has a weight of (31 kg) x (9.807 m/s2) = 304.017 newtons.

— On the Moon, the gravitational acceleration is approximately 1.623 m/s2.

The identical mass of 31 kg has a weight of (31 kg) x (1.623 m/s2) = 5.313 newtons.

The Moon is significantly lighter in mass than the Earth. The Moon is not just smaller than the Earth, but it is also only around 60% as dense. As a result, a person weighs less on the Moon than they do on Earth due to the significantly lower gravitational attraction there.

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Electric forces include all of the above, while gravitational forces do not.

Electric forces involve the interaction of electrically charged particles, and the strength of the force depends on the distance between the charges and the strength of the charges. The force decreases inversely with the square of the distance between the charges. The range of electric forces is theoretically infinite, meaning that the force can extend across any distance.

In contrast, gravitational forces involve the interaction of two masses and the strength of the force depends on the mass of the two objects and the distance between them. The force also decreases inversely with the square of the distance between the two masses, but the range of gravitational forces is limited to the universe.

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The hiker's average velocity during part B of the hike is 6 km/h South.

Given the following data:

Total distance = 6 km, South.

Start time = 9:45 am

Ending time = 10:45 am

To determine hiker's average velocity during part B of the hike:

First of all, we would determine the total time.

Total time = Ending time - starting time

Total time = 10:45 - 9:45

Total time = 1 hour.

Mathematically, the average velocity is given by the formula:

Average velocity = total distance / total time

Substituting the parameters into the formula, we have;

Average velocity = 6/1

Average velocity = 6 km/h South.

Therefore, the average velocity of the biker is 6 km/h South

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Answer:B. 100 Newtons

Explanation:

F=ma, this mean that the force is equal to the mass (10 kg) multiplied by the acceleration (10 [tex]m/s^{2}[/tex]). Plug mass and acceleration to solve: [tex]F=10*10[/tex] ∴ [tex]F=100[/tex].

The required force  to move a 10 kilogram object 10 meters per second squared be 100 Newton. So, Option(B) is correct.

The definition of force in physics is: The push or pull on a mass-containing item changes its velocity.

An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude. The application of force is the location at which force is applied, and the direction in which the force is applied is known as the direction of the force.

Given parameters:

Mass of the object = 10 kilogram.

Acceleration of the object: a = 10 meter per second squared.

So, from Newton's 2 nd law of motion, we get:

required force = mass × acceleration

= 10 × 10 Newton

= 100 Newton.

Hence, required force  to move a 10 kilogram object 10 meters per second squared be 100 Newton.

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The speed of the rock after it has travelled 2.1m is 2.3 approx.

Speed is simply defined as the rate of change of position of an object in any direction.

Here mass is m = 18 kg

Initial velocity is 1.5 m/s

So initial kinectic energy,1/2 mv ^ 2= 1/2 (18) 1.5(1.5) = 20.25 J

Then the workdone is ,W= F.s= 13(2.1) = 27.30

Using work energy theorem

Final KE- intial KE = workdone

==> Final KE = workdone + intial KE

Or Final KE = 27.30+20.25= 47.55 J

Then 1/2 M v^ 2 = 47.55 J

Or Final velocity V= 2.3 approx.

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The capacitance of the circuit is C = 8.382 F

A signal at a specific frequency can be detected or produced using LC circuits. The most typical use of tank circuits is for tuning radio transmitters and receivers. The LC circuits, for instance, create a resonance for that carrier frequency when you tune a radio to a particular station.

Given : a LC circuit

and the frequency given is 550khz = 550000 Hz

w = 2πf

and w = [tex]\sqrt{\frac{1}{LC} }[/tex]

this implies;

2πf  =  [tex]\sqrt{\frac{1}{LC} }[/tex]

On squaring both sides we get

4pi^2f^2 = [tex]\frac{1}{LC}[/tex]

thus C = [tex]\frac{1}{4pi^2f^2}[/tex]

after substituting the value in this equation we get;

C = 1/ ( 4 × 3.14 × 3.14 × 550 × 550 )

C = 8.382 F

Thus the capacitance is C = 8.382 F

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Answer:

A 0.5 kg object is launched vertically when its put on top of a spring that has been compressed by 12 cm. The spring constant is 24 kN/m.

Explanation:

Graph corresponding to the stone's vertical velocity, vy(t) is slant line from 1st quadrant to 4th quadrant.

Assume, For time direction 0 to 2 seconds

V  = Vo - gt

At T = 2 sec; V = 0

so, 0 = Vo - 20

Vo = 20 m/s

From T = 2 sec to T = 6sec

V = 0 - gt = -10 t

hence

Velocity vs time graph is in figure.

An object's speed and direction on a vertical plane are referred to as vertical velocity. Vertical velocity can be used to describe a variety of objects, including coins dropped into wells by children and balls flung into the air. Gravity, which constantly acts on an item to change its velocity, is a crucial factor in vertical velocity. As the ball ascends, its speed will progressively slow until it eventually comes to a stop, modifies its course, and returns to earth. Anywhere along the ball's course, its velocity can be expressed as a number. The number's sign (positive or negative) indicates the ball's direction, and its value indicates the ball's speed.

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The speed of the block after a time t1 be greater than, less than, or equal to v1 is higher.

Initial velocity is the velocity at time interval t = 0 and it's miles represented by way of u. it's far the speed at which the motion begins. they're four initial pace formulation: (1) If time, acceleration and very last pace are supplied, the initial velocity is articulated as. u = v – at.

Calculation:-

V 1 = R/ (R/v + ut)

Since the denominator is smaller. So the Velocity becomes higher.

Speed is described as. The rate of exchange of function of an item in any course. pace is measured because the ratio of distance to the time wherein the distance was included. speed is a scalar amount as it has simplest course and no magnitude.

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When water freezes, the water molecules create a crystalline structure that is held together by hydrogen bonding.

define density ?

The density of a material indicates the density of that material in a specified region. The density of a substance is defined as its mass per unit volume. Density is a measurement of how closely stuff is packed together. It is a distinct physical attribute of a certain thing. Archimedes, a Greek scientist, developed the density principle. If you know the formula and understand the units, calculating density is simple. The sign indicates density, which may also be represented by the letter D.  

Water molecules develop a crystalline structure when it freezes, which is sustained by hydrogen bonding. The density of solid water, or ice, is lower than that of liquid water. Because the orientation of hydrogen bonding leads molecules to push further apart, ice has a lower density than water.

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A reflecting telescope is built with a 10-cm-diameter mirror having a 1.00 m focal length. it is used with a 5× eyepiece. F/10.

What is Magnification?

Magnification of the[tex]$M_{\text {tellicops }}=\frac{\text { Focallength of the objective }}{\text { focal length of the eyepiece }}$[/tex]

Focal length of the objective [tex]$=1.0 \mathrm{~m}=100 \mathrm{~cm}$[/tex]

For a magnifier, magnification [tex]$M=\frac{10}{\text { Focal length }}$[/tex]

Where the focal length must be in inches

Magnification of eyepiece [tex]$M=5 X$[/tex]

Focal length of the eyepiece[tex]$=\frac{10}{5}=2$ inches $=5.08 \mathrm{~cm}$[/tex]

There for magnification of the telescope

[tex]$$\begin{aligned}& M_{\text {telescope }}=\frac{100}{5.08} \\& M_{\text {telesccpe }}=19.68 \approx 20 \mathrm{X}\end{aligned}$$[/tex]

f number of the telescope[tex]$\mathrm{N}=\frac{f}{D}$[/tex]

f is the focal length of the objective[tex]$=1 \mathrm{~m}=100 \mathrm{~cm}$[/tex]

[tex]$\mathrm{D}$[/tex] is the diameter of the objective[tex]$=10 \mathrm{~cm}$[/tex]

[tex]N=\frac{100}{10}=f / 10$$[/tex]

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Answer:

Below

Explanation:

Distance will be given by the equation:

df = do + vo t  + 1/2 a t^2       do = 0    a = -9.81 m/s^2

df = 0 + 120 (4) + 1/2(-9.81)4^2 = 401.5 m

Answer: MOVING

Explanation:

A magnetic field is caused by a MOVING electric charge.

Charge can be positive or negative.

Making a few assumptions like uniformity and flatness of the universe we have :

A. [tex](\frac{a}{a} )^{2} = \frac{8\pi gs+\pi }{3}[/tex]

B. [tex]\frac{a}{a} = - \frac{4\pi G}{3} (S+3P)+\frac{\pi }{3}[/tex]

where is 'a' is a scale factor which tells us how expanded the Universe is. And it's the first derivative gives the rate of expansion and its second derivative gives the acceleration of the universe.

So if G increases, due to the mass of neutrons. Then the acceleration would have a negative value which would mean slowing down.

All the above however does not consider dark energy, which would modify the equations. We still have to understand the nature of dark matter to be able to predict how much in the long run would gravity affect acceleration.

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The height at which the weight of mass 8.86 kg was lifted is 3.5 m.

Height is the vertical distance between two points.

To calculate how high the weight is lifted, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the height the weight can be lifted is 3.5 m.

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There are a few different physics symbols that denote units, variables, or quantities:

So, to summarize, units are used to measure physical quantities, variables are quantities that can take on different values, and quantities are physical quantities that can be measured.

The given statement was false as sliding friction is lower than static friction.

what is Sliding friction ?

The friction experienced by two bodies in a comparable sliding motion is referred to as sliding friction. Sliding friction, like any other form of friction, may produce wear and tear on moving bodies.

Kinetic friction is a notion that defines the friction that happens as something slides. Because sliding friction is lower than static friction, moving a moving body is much easier than moving a stationary body (rest).

In contrast, the frictional force associated with a sliding motion is typically substantially larger. Although sliding friction is unaffected by surface area or total area of contact, it is greatly impacted by two factors: the kind of moving objects and their mass.

The given statement was false as sliding friction is lower than static friction.

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4,860m/s² centripetal acceleration at the tip of a 4.00 m long helicopter blade that rotates at 270 rev/min.

The rate at which tangential velocity changes is known as centripetal acceleration. Centripetal force is defined as the total force that accelerates an item in a circular motion. The centripetal force points in the direction of the centre, perpendicular to the body's motion.

An object moves in a circular motion around a central axis when it is rotating or spinning. A two-dimensional spinning object can rotate in either a clockwise or counterclockwise direction and has a single potential central axis. There are countless central axis and rotational directions that can be used to describe a three-dimensional object.

Calculation:

Centripetal acceleration =  ac = w². r

= (270)² × 4 = 4,860m/s²

Hence, 4,860m/s² centripetal acceleration.

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The surface area of the flament is -4 m square feet.

Surface means an outside part of an body or object.

We are asked to find the surface area. So we have to use the equation that relates power and surface area. So power is :

H= Ae σ T⁴

Where, H= power (60 watts)

A=area

σ=universal constant (5.67×10⁻⁸ w/m²)

T=Temperature(1773k)

So our surface area is just our area. A. So A. Is equal to power divided by the emissivity times of the  Stefan bolts, mons, constant to the  times the temperature to the fourth of  power.

So now we can the  substitute our values

(60/600.23)×5.67×10⁻⁸×1773⁴=4.65×10⁻⁴m²

Area of the filament is 4.65×10⁻⁴m²

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The correct option is B); Real and inverted , Since, the image is formed on the other side of lens it will be real and inverted.

When an item is positioned in front of the focal point of a converging lens, a virtual picture is created. The picture is enlarged and upright in this posture, making it simpler to observe.

When the rays come together, a true image is created. A virtual picture is always created above the primary axis, therefore it is always upright, as opposed to a real image, which is always formed below the principal axis and is always inverted.

A actual and inverted picture of an item positioned on the primary axis can only be formed by a convex lens.

While virtual pictures are created by diverging beams, real images are created by intersecting rays. While virtual pictures cannot be shown on a screen, real images may. Concave and convex lenses placed in opposition create real pictures.

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